How to say "anomaly" in Japanese

Choosing the right word
  • 変調へんちょうCommon
    noun, suru verb, transitive verb, intransitive verbCovers 'anomaly' as an abnormality of condition: something, as with a body or a system, being out of order or disturbed. It points to a state of malfunction, not to an exception from a rule.
  • 変則へんそくCommon
    na-adjective, no-adjectiveCovers 'anomaly' as an irregularity: a case, arrangement, or procedure that departs from the normal rule or pattern. It frames the anomaly as an exception to a standard rather than a disturbance in condition.

Use 変調 for an anomaly that is an abnormal condition or disturbance in how something works, and 変則 for an anomaly that is an irregular case departing from the normal rule or pattern.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android